2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/15551By using the WKB quantization we deduce an analytical formula for the energy splitting in a double-well potential which is the usual Landau formula with additional quantum corrections. Then we analyze the accuracy of our formula for the double square well potential and the parabolic double-well potential.11 pages, latex, no figures, Preprint CAMTP/97-4, August 1997, submitted to J. Phys. A: Math. GenChaotic Dynamicstext